A. Geometric isomerism
B. Structural isomerism
C. Cis-trans isomerism
D. Stereoisomerism
Answer: Structural isomerism
A. Geometric isomerism
B. Structural isomerism
C. Cis-trans isomerism
D. Stereoisomerism
Answer: Structural isomerism
Additional Information: Aldehydes and ketones can exhibit structural isomerism due to different arrangements of atoms.